Sample tube identification flag

Scratch tape

Scratch-off lottery game with dual transparent layers

Scratch-off marking label

Sealed card

Secret optical marking

Secret scratch sticker and method of manufacturing the same

Secure and self-verifiable image

Secure badge for infrared badge reader and process for making sa

Secure card

Secure credit card

Secure credit card and method of manufacturing same

Secure document

Secure document with self-authenticating, encryptable font

Secure event tickets

Secure financial instrument and method and apparatus for printin

Secure identification card and system

Secure on-pack promotional coupons

Secure product authentication tags

Secured personal information packet